void CDTMapToolSelectTrainingSamples::canvasReleaseEvent(QgsMapMouseEvent *e)
{
if ( e->button() == Qt::LeftButton )
{
if ( mDragging )
{
mCanvas->panActionEnd( e->pos() );
mDragging = false;
}
else // add pan to mouse cursor
{
// transform the mouse pos to map coordinates
QgsPoint center = mCanvas->getCoordinateTransform()->toMapPoint( e->x(), e->y() );
mCanvas->setExtent( QgsRectangle( center, center ) );
mCanvas->refresh();
}
}
else if (e->button()==Qt::RightButton)
{
QgsVectorLayer* vlayer = NULL;
if ( !mapCanvas->currentLayer()
|| ( vlayer = qobject_cast<QgsVectorLayer *>( mapCanvas->currentLayer() ) ) == NULL )
return;
QRect selectRect( 0, 0, 0, 0 );
int boxSize = 1;
selectRect.setLeft ( e->pos().x() - boxSize );
selectRect.setRight ( e->pos().x() + boxSize );
selectRect.setTop ( e->pos().y() - boxSize );
selectRect.setBottom( e->pos().y() + boxSize );
const QgsMapToPixel* transform = mapCanvas->getCoordinateTransform();
QgsPoint ll = transform->toMapCoordinates( selectRect.left(), selectRect.bottom() );
QgsPoint ur = transform->toMapCoordinates( selectRect.right(), selectRect.top() );
QgsPolyline points;
points.push_back(ll);
points.push_back(QgsPoint( ur.x(), ll.y() ));
points.push_back(ur);
points.push_back(QgsPoint( ll.x(), ur.y() ));
QgsPolygon polygon;
polygon.push_back(points);
QgsGeometry selectGeom = *(QgsGeometry::fromPolygon(polygon) );
if ( mapCanvas->mapSettings().hasCrsTransformEnabled() )
{
QgsCoordinateTransform ct( mapCanvas->mapSettings().destinationCrs(), vlayer->crs() );
selectGeom.transform( ct );
}
QgsFeatureIterator fit = vlayer->getFeatures( QgsFeatureRequest().setFilterRect( selectGeom.boundingBox() ).setFlags( QgsFeatureRequest::ExactIntersect ) );
QgsFeature f;
qint64 closestFeatureId = 0;
bool foundSingleFeature = false;
double closestFeatureDist = std::numeric_limits<double>::max();
while ( fit.nextFeature( f ) )
{
QgsGeometry* g = f.geometry();
if ( !selectGeom.intersects( g ) )
continue;
foundSingleFeature = true;
double distance = g->distance( selectGeom );
if ( distance <= closestFeatureDist )
{
closestFeatureDist = distance;
closestFeatureId = f.attribute("GridCode").toInt();
}
}
if ( foundSingleFeature )
addSingleSample( closestFeatureId );
}
}
bool QgsEllipseSymbolLayerV2::writeDxf( QgsDxfExport& e, double mmMapUnitScaleFactor, const QString& layerName, const QgsSymbolV2RenderContext* context, const QgsFeature* f, const QPointF& shift ) const
{
//width
double symbolWidth = mSymbolWidth;
QgsExpression* widthExpression = expression( "width" );
if ( widthExpression ) //1. priority: data defined setting on symbol layer level
{
symbolWidth = widthExpression->evaluate( const_cast<QgsFeature*>( f ) ).toDouble();
}
else if ( context->renderHints() & QgsSymbolV2::DataDefinedSizeScale ) //2. priority: is data defined size on symbol level
{
symbolWidth = mSize;
}
if ( mSymbolWidthUnit == QgsSymbolV2::MM )
{
symbolWidth *= mmMapUnitScaleFactor;
}
//height
double symbolHeight = mSymbolHeight;
QgsExpression* heightExpression = expression( "height" );
if ( heightExpression ) //1. priority: data defined setting on symbol layer level
{
symbolHeight = heightExpression->evaluate( const_cast<QgsFeature*>( f ) ).toDouble();
}
else if ( context->renderHints() & QgsSymbolV2::DataDefinedSizeScale ) //2. priority: is data defined size on symbol level
{
symbolHeight = mSize;
}
if ( mSymbolHeightUnit == QgsSymbolV2::MM )
{
symbolHeight *= mmMapUnitScaleFactor;
}
//outline width
double outlineWidth = mOutlineWidth;
QgsExpression* outlineWidthExpression = expression( "outline_width" );
if ( outlineWidthExpression )
{
outlineWidth = outlineWidthExpression->evaluate( const_cast<QgsFeature*>( context->feature() ) ).toDouble();
}
if ( mOutlineWidthUnit == QgsSymbolV2::MM )
{
outlineWidth *= outlineWidth;
}
//fill color
QColor fc = mFillColor;
QgsExpression* fillColorExpression = expression( "fill_color" );
if ( fillColorExpression )
{
fc = QColor( fillColorExpression->evaluate( const_cast<QgsFeature*>( context->feature() ) ).toString() );
}
int fillColorIndex = e.closestColorMatch( fc.rgb() );
//outline color
QColor oc = mOutlineColor;
QgsExpression* outlineColorExpression = expression( "outline_color" );
if ( outlineColorExpression )
{
oc = QColor( outlineColorExpression->evaluate( const_cast<QgsFeature*>( context->feature() ) ).toString() );
}
int outlineColorIndex = e.closestColorMatch( oc.rgb() );
//symbol name
QString symbolName = mSymbolName;
QgsExpression* symbolNameExpression = expression( "symbol_name" );
if ( symbolNameExpression )
{
QgsExpression* symbolNameExpression = expression( "symbol_name" );
symbolName = symbolNameExpression->evaluate( const_cast<QgsFeature*>( context->feature() ) ).toString();
}
//offset
double offsetX = 0;
double offsetY = 0;
markerOffset( *context, offsetX, offsetY );
QPointF off( offsetX, offsetY );
//priority for rotation: 1. data defined symbol level, 2. symbol layer rotation (mAngle)
double rotation = 0.0;
QgsExpression* rotationExpression = expression( "rotation" );
if ( rotationExpression )
{
rotation = rotationExpression->evaluate( const_cast<QgsFeature*>( context->feature() ) ).toDouble();
}
else if ( !qgsDoubleNear( mAngle, 0.0 ) )
{
rotation = mAngle;
}
rotation = -rotation; //rotation in Qt is counterclockwise
if ( rotation )
off = _rotatedOffset( off, rotation );
QTransform t;
t.translate( shift.x() + offsetX, shift.y() + offsetY );
if ( rotation != 0 )
t.rotate( rotation );
double halfWidth = symbolWidth / 2.0;
double halfHeight = symbolHeight / 2.0;
if ( symbolName == "circle" )
{
if ( qgsDoubleNear( halfWidth, halfHeight ) )
{
QPointF pt( t.map( QPointF( 0, 0 ) ) );
e.writeCircle( layerName, outlineColorIndex, QgsPoint( pt.x(), pt.y() ), halfWidth );
}
else
{
QgsPolyline line;
double stepsize = 2 * M_PI / 40;
for ( int i = 0; i < 39; ++i )
{
double angle = stepsize * i;
double x = halfWidth * cos( angle );
double y = halfHeight * sin( angle );
QPointF pt( t.map( QPointF( x, y ) ) );
line.push_back( QgsPoint( pt.x(), pt.y() ) );
}
//close ellipse with first point
line.push_back( line.at( 0 ) );
e.writePolyline( line, layerName, "solid", outlineColorIndex, outlineWidth, true );
}
}
else if ( symbolName == "rectangle" )
{
QPointF pt1( t.map( QPointF( -halfWidth, -halfHeight ) ) );
QPointF pt2( t.map( QPointF( halfWidth, -halfHeight ) ) );
QPointF pt3( t.map( QPointF( -halfWidth, halfHeight ) ) );
QPointF pt4( t.map( QPointF( halfWidth, halfHeight ) ) );
e.writeSolid( layerName, fillColorIndex, QgsPoint( pt1.x(), pt1.y() ), QgsPoint( pt2.x(), pt2.y() ), QgsPoint( pt3.x(), pt3.y() ), QgsPoint( pt4.x(), pt4.y() ) );
return true;
}
else if ( symbolName == "cross" )
{
QgsPolyline line1( 2 );
QPointF pt1( t.map( QPointF( -halfWidth, 0 ) ) );
QPointF pt2( t.map( QPointF( halfWidth, 0 ) ) );
line1[0] = QgsPoint( pt1.x(), pt1.y() );
line1[1] = QgsPoint( pt2.x(), pt2.y() );
e.writePolyline( line1, layerName, "CONTINUOUS", outlineColorIndex, outlineWidth, false );
QgsPolyline line2( 2 );
QPointF pt3( t.map( QPointF( 0, halfHeight ) ) );
QPointF pt4( t.map( QPointF( 0, -halfHeight ) ) );
line2[0] = QgsPoint( pt3.x(), pt3.y() );
line2[1] = QgsPoint( pt4.x(), pt4.y() );
e.writePolyline( line2, layerName, "CONTINUOUS", outlineColorIndex, outlineWidth, false );
return true;
}
else if ( symbolName == "triangle" )
{
QPointF pt1( t.map( QPointF( -halfWidth, -halfHeight ) ) );
QPointF pt2( t.map( QPointF( halfWidth, -halfHeight ) ) );
QPointF pt3( t.map( QPointF( 0, halfHeight ) ) );
QPointF pt4( t.map( QPointF( 0, halfHeight ) ) );
e.writeSolid( layerName, fillColorIndex, QgsPoint( pt1.x(), pt1.y() ), QgsPoint( pt2.x(), pt2.y() ), QgsPoint( pt3.x(), pt3.y() ), QgsPoint( pt4.x(), pt4.y() ) );
return true;
}
return false; //soon...
}
bool QgsEllipseSymbolLayerV2::writeDxf( QgsDxfExport& e, double mmMapUnitScaleFactor, const QString& layerName, QgsSymbolV2RenderContext *context, const QgsFeature*, const QPointF& shift ) const
{
//width
double symbolWidth = mSymbolWidth;
if ( hasDataDefinedProperty( QgsSymbolLayerV2::EXPR_WIDTH ) ) //1. priority: data defined setting on symbol layer le
{
context->setOriginalValueVariable( mSymbolWidth );
symbolWidth = evaluateDataDefinedProperty( QgsSymbolLayerV2::EXPR_WIDTH, *context, mSymbolWidth ).toDouble();
}
else if ( context->renderHints() & QgsSymbolV2::DataDefinedSizeScale ) //2. priority: is data defined size on symbol level
{
symbolWidth = mSize;
}
if ( mSymbolWidthUnit == QgsSymbolV2::MM )
{
symbolWidth *= mmMapUnitScaleFactor;
}
//height
double symbolHeight = mSymbolHeight;
if ( hasDataDefinedProperty( QgsSymbolLayerV2::EXPR_HEIGHT ) ) //1. priority: data defined setting on symbol layer level
{
context->setOriginalValueVariable( mSymbolHeight );
symbolHeight = evaluateDataDefinedProperty( QgsSymbolLayerV2::EXPR_HEIGHT, *context, mSymbolHeight ).toDouble();
}
else if ( context->renderHints() & QgsSymbolV2::DataDefinedSizeScale ) //2. priority: is data defined size on symbol level
{
symbolHeight = mSize;
}
if ( mSymbolHeightUnit == QgsSymbolV2::MM )
{
symbolHeight *= mmMapUnitScaleFactor;
}
//outline width
double outlineWidth = mOutlineWidth;
if ( hasDataDefinedProperty( QgsSymbolLayerV2::EXPR_OUTLINE_WIDTH ) )
{
context->setOriginalValueVariable( mOutlineWidth );
outlineWidth = evaluateDataDefinedProperty( QgsSymbolLayerV2::EXPR_OUTLINE_WIDTH, *context, mOutlineWidth ).toDouble();
}
if ( mOutlineWidthUnit == QgsSymbolV2::MM )
{
outlineWidth *= outlineWidth;
}
//fill color
bool ok;
QColor fc = mFillColor;
if ( hasDataDefinedProperty( QgsSymbolLayerV2::EXPR_FILL_COLOR ) )
{
context->setOriginalValueVariable( QgsSymbolLayerV2Utils::encodeColor( mFillColor ) );
QString colorString = evaluateDataDefinedProperty( QgsSymbolLayerV2::EXPR_FILL_COLOR, *context, QVariant(), &ok ).toString();
if ( ok )
fc = QgsSymbolLayerV2Utils::decodeColor( colorString );
}
//outline color
QColor oc = mOutlineColor;
if ( hasDataDefinedProperty( QgsSymbolLayerV2::EXPR_OUTLINE_COLOR ) )
{
context->setOriginalValueVariable( QgsSymbolLayerV2Utils::encodeColor( mOutlineColor ) );
QString colorString = evaluateDataDefinedProperty( QgsSymbolLayerV2::EXPR_OUTLINE_COLOR, *context, QVariant(), &ok ).toString();
if ( ok )
oc = QgsSymbolLayerV2Utils::decodeColor( colorString );
}
//symbol name
QString symbolName = mSymbolName;
if ( hasDataDefinedProperty( QgsSymbolLayerV2::EXPR_SYMBOL_NAME ) )
{
context->setOriginalValueVariable( mSymbolName );
symbolName = evaluateDataDefinedProperty( QgsSymbolLayerV2::EXPR_SYMBOL_NAME, *context, mSymbolName ).toString();
}
//offset
double offsetX = 0;
double offsetY = 0;
markerOffset( *context, offsetX, offsetY );
QPointF off( offsetX, offsetY );
//priority for rotation: 1. data defined symbol level, 2. symbol layer rotation (mAngle)
double rotation = 0.0;
if ( hasDataDefinedProperty( QgsSymbolLayerV2::EXPR_ROTATION ) )
{
context->setOriginalValueVariable( mAngle );
rotation = evaluateDataDefinedProperty( QgsSymbolLayerV2::EXPR_ROTATION, *context, mAngle ).toDouble() + mLineAngle;
}
else if ( !qgsDoubleNear( mAngle + mLineAngle, 0.0 ) )
{
rotation = mAngle + mLineAngle;
}
rotation = -rotation; //rotation in Qt is counterclockwise
if ( rotation )
off = _rotatedOffset( off, rotation );
QTransform t;
t.translate( shift.x() + offsetX, shift.y() + offsetY );
if ( rotation != 0 )
t.rotate( rotation );
double halfWidth = symbolWidth / 2.0;
double halfHeight = symbolHeight / 2.0;
if ( symbolName == "circle" )
{
if ( qgsDoubleNear( halfWidth, halfHeight ) )
{
QPointF pt( t.map( QPointF( 0, 0 ) ) );
e.writeFilledCircle( layerName, oc, pt, halfWidth );
}
else
{
QgsPolyline line;
double stepsize = 2 * M_PI / 40;
for ( int i = 0; i < 39; ++i )
{
double angle = stepsize * i;
double x = halfWidth * cos( angle );
double y = halfHeight * sin( angle );
QPointF pt( t.map( QPointF( x, y ) ) );
line.push_back( pt );
}
//close ellipse with first point
line.push_back( line.at( 0 ) );
if ( mBrush.style() != Qt::NoBrush )
e.writePolygon( QgsPolygon() << line, layerName, "SOLID", fc );
if ( mPen.style() != Qt::NoPen )
e.writePolyline( line, layerName, "CONTINUOUS", oc, outlineWidth );
}
}
else if ( symbolName == "rectangle" )
{
QgsPolygon p( 1 );
p[0].resize( 5 );
p[0][0] = t.map( QPointF( -halfWidth, -halfHeight ) );
p[0][1] = t.map( QPointF( halfWidth, -halfHeight ) );
p[0][2] = t.map( QPointF( halfWidth, halfHeight ) );
p[0][3] = t.map( QPointF( -halfWidth, halfHeight ) );
p[0][4] = p[0][0];
if ( mBrush.style() != Qt::NoBrush )
e.writePolygon( p, layerName, "SOLID", fc );
if ( mPen.style() != Qt::NoPen )
e.writePolyline( p[0], layerName, "CONTINUOUS", oc, outlineWidth );
return true;
}
else if ( symbolName == "cross" && mPen.style() != Qt::NoPen )
{
QgsPolyline line( 2 );
line[0] = t.map( QPointF( -halfWidth, 0 ) );
line[1] = t.map( QPointF( halfWidth, 0 ) );
e.writePolyline( line, layerName, "CONTINUOUS", oc, outlineWidth );
line[0] = t.map( QPointF( 0, halfHeight ) );
line[1] = t.map( QPointF( 0, -halfHeight ) );
e.writePolyline( line, layerName, "CONTINUOUS", oc, outlineWidth );
return true;
}
else if ( symbolName == "triangle" )
{
QgsPolygon p( 1 );
p[0].resize( 4 );
p[0][0] = QPointF( t.map( QPointF( -halfWidth, -halfHeight ) ) );
p[0][1] = QPointF( t.map( QPointF( halfWidth, -halfHeight ) ) );
p[0][2] = QPointF( t.map( QPointF( 0, halfHeight ) ) );
p[0][3] = p[0][0];
if ( mBrush.style() != Qt::NoBrush )
e.writePolygon( p, layerName, "SOLID", fc );
if ( mPen.style() != Qt::NoPen )
e.writePolyline( p[0], layerName, "CONTINUOUS", oc, outlineWidth );
return true;
}
return false; //soon...
}
bool QgsEllipseSymbolLayerV2::writeDxf( QgsDxfExport& e, double mmMapUnitScaleFactor, const QString& layerName, const QgsSymbolV2RenderContext* context, const QgsFeature* f, const QPointF& shift ) const
{
//width
double symbolWidth = mSymbolWidth;
if ( hasDataDefinedProperty( "width" ) ) //1. priority: data defined setting on symbol layer le
{
symbolWidth = evaluateDataDefinedProperty( "width", f, mSymbolWidth ).toDouble();
}
else if ( context->renderHints() & QgsSymbolV2::DataDefinedSizeScale ) //2. priority: is data defined size on symbol level
{
symbolWidth = mSize;
}
if ( mSymbolWidthUnit == QgsSymbolV2::MM )
{
symbolWidth *= mmMapUnitScaleFactor;
}
//height
double symbolHeight = mSymbolHeight;
if ( hasDataDefinedProperty( "height" ) ) //1. priority: data defined setting on symbol layer level
{
symbolHeight = evaluateDataDefinedProperty( "height", f, mSymbolHeight ).toDouble();
}
else if ( context->renderHints() & QgsSymbolV2::DataDefinedSizeScale ) //2. priority: is data defined size on symbol level
{
symbolHeight = mSize;
}
if ( mSymbolHeightUnit == QgsSymbolV2::MM )
{
symbolHeight *= mmMapUnitScaleFactor;
}
//outline width
double outlineWidth = mOutlineWidth;
if ( hasDataDefinedProperty( "outline_width" ) )
{
outlineWidth = evaluateDataDefinedProperty( "outline_width", f, mOutlineWidth ).toDouble();
}
if ( mOutlineWidthUnit == QgsSymbolV2::MM )
{
outlineWidth *= outlineWidth;
}
//fill color
bool ok;
QColor fc = mFillColor;
if ( hasDataDefinedProperty( "fill_color" ) )
{
QString colorString = evaluateDataDefinedProperty( "fill_color", f, QVariant(), &ok ).toString();
if ( ok )
fc = QColor( colorString );
}
//outline color
QColor oc = mOutlineColor;
if ( hasDataDefinedProperty( "outline_color" ) )
{
QString colorString = evaluateDataDefinedProperty( "outline_color", f, QVariant(), &ok ).toString();
if ( ok )
oc = QColor( colorString );
}
//symbol name
QString symbolName = mSymbolName;
if ( hasDataDefinedProperty( "symbol_name" ) )
{
symbolName = evaluateDataDefinedProperty( "symbol_name", f, mSymbolName ).toString();
}
//offset
double offsetX = 0;
double offsetY = 0;
markerOffset( *context, offsetX, offsetY );
QPointF off( offsetX, offsetY );
//priority for rotation: 1. data defined symbol level, 2. symbol layer rotation (mAngle)
double rotation = 0.0;
if ( hasDataDefinedProperty( "rotation" ) )
{
rotation = evaluateDataDefinedProperty( "rotation", f, mAngle ).toDouble();
}
else if ( !qgsDoubleNear( mAngle, 0.0 ) )
{
rotation = mAngle;
}
rotation = -rotation; //rotation in Qt is counterclockwise
if ( rotation )
off = _rotatedOffset( off, rotation );
QTransform t;
t.translate( shift.x() + offsetX, shift.y() + offsetY );
if ( rotation != 0 )
t.rotate( rotation );
double halfWidth = symbolWidth / 2.0;
double halfHeight = symbolHeight / 2.0;
if ( symbolName == "circle" )
{
if ( qgsDoubleNear( halfWidth, halfHeight ) )
{
QPointF pt( t.map( QPointF( 0, 0 ) ) );
e.writeFilledCircle( layerName, oc, pt, halfWidth );
}
else
{
QgsPolyline line;
double stepsize = 2 * M_PI / 40;
for ( int i = 0; i < 39; ++i )
{
double angle = stepsize * i;
double x = halfWidth * cos( angle );
double y = halfHeight * sin( angle );
QPointF pt( t.map( QPointF( x, y ) ) );
line.push_back( pt );
}
//close ellipse with first point
line.push_back( line.at( 0 ) );
e.writePolyline( line, layerName, "SOLID", oc, outlineWidth );
}
}
else if ( symbolName == "rectangle" )
{
QPointF pt1( t.map( QPointF( -halfWidth, -halfHeight ) ) );
QPointF pt2( t.map( QPointF( halfWidth, -halfHeight ) ) );
QPointF pt3( t.map( QPointF( -halfWidth, halfHeight ) ) );
QPointF pt4( t.map( QPointF( halfWidth, halfHeight ) ) );
e.writeSolid( layerName, fc, pt1, pt2, pt3, pt4 );
return true;
}
else if ( symbolName == "cross" )
{
QgsPolyline line1( 2 );
QPointF pt1( t.map( QPointF( -halfWidth, 0 ) ) );
QPointF pt2( t.map( QPointF( halfWidth, 0 ) ) );
line1[0] = pt1;
line1[1] = pt2;
e.writePolyline( line1, layerName, "CONTINUOUS", oc, outlineWidth );
QgsPolyline line2( 2 );
QPointF pt3( t.map( QPointF( 0, halfHeight ) ) );
QPointF pt4( t.map( QPointF( 0, -halfHeight ) ) );
line2[0] = pt3;
line2[1] = pt4;
e.writePolyline( line2, layerName, "CONTINUOUS", oc, outlineWidth );
return true;
}
else if ( symbolName == "triangle" )
{
QPointF pt1( t.map( QPointF( -halfWidth, -halfHeight ) ) );
QPointF pt2( t.map( QPointF( halfWidth, -halfHeight ) ) );
QPointF pt3( t.map( QPointF( 0, halfHeight ) ) );
QPointF pt4( t.map( QPointF( 0, halfHeight ) ) );
e.writeSolid( layerName, fc, pt1, pt2, pt3, pt4 );
return true;
}
return false; //soon...
}
